can this just heat up water
18419
Probably. I never tried to just heat water and I have since given it away. Sorry
619864
Yes, in my opinion. I was thinking exactly the same thing. It would simply reheat (and dilute) the the cooled water laying in the hot water pipe. If you only used small amounts of hot water each time, like washing your hands in a half bath, for instance, you may as well use cold water supply because the same water may be heated twice. For showers and dish washing it would work great and simply pass the hot water from regular tank without even kicking on and you won't run out of hot water after just 2 gallons. I think the temperature of the small tank should be 2 to 3 degrees cooler than the regular tank but good luck adjusting it that close. Thanks for asking. Yes, in my opinion. I was thinking exactly the same thing. It would simply reheat (and dilute) the the cooled water laying in the hot water pipe. If you only used small amounts of hot water each time, like washing your hands in a half bath, for instance, you may as well use cold water supply because the same water may be heated twice. For showers and dish washing it would work great and simply pass the hot water from regular tank without even kicking on and you won't run out of hot water after just 2 gallons. I think the temperature of the small tank should be 2 to 3 degrees cooler than the... » Read More Yes, in my opinion. I was thinking exactly the same thing. It would simply reheat (and dilute) the the cooled water laying in the hot water pipe. If you only used small amounts of hot water each time, like washing your hands in a half bath, for instance, you may as well use cold water supply because the same water may be heated twice. For showers and dish washing it would work great and simply pass the hot water from regular tank without even kicking on and you won't run out of hot water after just 2 gallons. I think the temperature of the small tank should be 2 to 3 degrees cooler than the regular tank but good luck adjusting it that close. Thanks for asking. « Show Less
1945447
Yes. It will give you hot water faster. But be aware, when your existing hot water reaches the tank, it will be REALLY hot!
1518317
no, but it might take quite a while. I put water in it and it took about 20 minutes to get what would be just warm. I haven't tested its Temperature-over-time/liquid.I'd do it now because you have me curious about it, but the unit self-destructed within weeks.
2096196
Its possible. I think at first use it would take longer to heat because of the bigger size but once the water is heated it would stay that way. I also use room temperature water when refilling the tank or lukewarm tap water. You'll see the light come on from the heater to warm the water, which it wont take as long because the water is not real cold.
906716
It doesn't actually heat the water. You have to put hot water in to get hot water out.
921420
Yes, it heats up nicely, however, I would not recommend this. A little after a year the tank randomly started leaking, it is hard to unscrew the bottom and the bottom gets a lot of mildew. I was previously pleased with this. Not anymore, not for that price.
1742888
Yes. Depending on the room temp of the water it will heat up a lot faster than 90 sec. We found if you heat up a glass bottle it heats much faster than 90 sec. We then transfer the water to the plastic bottle.
964269
I do not use this to heat up the water, rather, after the water is heated, this is used to keep it hot.
768065
It doesn't heat anything. What it does is have two water intakes. You would need to attach the second intake to a hot water pipe.
305374
No. It does not heat the water. It's not recommended to purchase it. The one I brought last year stopped working already.
1636235
No. The connection is directly to the line and you would have hot water on demand. I have this installed in a cabin that I built and so far works great.
1855748
I don't think so. Heats water about 40 degrees above incoming temp. Warm but not hot.
851564
Yes. There has to be a little movement in the water to distribute the warmer water. I have water plus some white vineger in my footbath which I change every 3 sessions. So i turn on the footbath, without bubbles, turn on the heat button, and in 10-15 minutes the water is hot-and if you leave the heater on, it gets really hot! I have a little place set up in my bathroom with a chair, towels, foot creams, clippers, reading glasses! I turn bath on, tidy up my house for the nite, and by that time it is nice and hot. Then I bring my book and a drink, and sit for an hour in the bath. If it cools too much, I turn heater back on for a bit. I had 2 other footbaths that did NOT heat up the water or keep it hot as was advertised. This does it all. Love it!
453186
As Mr. Loria already commented, it does heat the water some, but I never took the temperature. It won't be hot enough to make a color run, if that's what you're thinking. I have not had any issues with the water being too hot to touch or accidentally burning myself, either.
491746
no! they advise in the booklet that comes with the product to boil just water.
5217
No it can't. I have an electric kettle that I use to boil the water. It makes it real easy